Patent · US Active

Blend of plastics with wood particles

US9193106B2 · kind B2 · utility

3Cited by

10References

20Claims

0Family size

Assignees

Entex Rust & Mitschke GmbH · DE
Novo-Tech GmbH & Co. KG · DE

Inventors

Harald Rust · Bochum, DE
Holger Sasse · Aschersleben, DE

Key dates

Filing date	Oct 1, 2012
Grant date	Nov 24, 2015
Priority date	—
Expiry date	May 13, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2311/14
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Method for producing a blend of a plastic first material and a wood or other plant second material in a planetary roller extrusion arrangement. The method involves feeding particles of the second material into a feed, which particles of the second material have a maximum diameter of 1 mm. Particles of the first material are fed into a melting device and liquefied into a plastic melt. The plastic melt is fed into a pump. Particles of the second material are moved into a planetary roller part of the extrusion arrangement, while the plastic melt is also pumped in. The particles of the second material are then blended with the plastic melt to form a blend that is at least 60% by weight of the second material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.